7.Gravitation
easy

The mass of moon is $7.34 \times {10^{22}}\,kg$ and radius of moon is $1.74 \times {10^6}\,m$ then The value of gravitation accelaration will be ....... $N/kg$

A

$1.45$

B

$1.55$

C

$1.75$

D

$1.62$

Solution

(d)$g = \frac{{GM}}{{{R^2}}} = \frac{{6.67 \times {{10}^{ – 11}} \times 7.34 \times {{10}^{22}}}}{{{{(1.74 \times {{10}^6})}^2}}} = 1.62\,N/kg$

Standard 11
Physics

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